From the introduction: The pseudo-continent of Énéa is a part of the Jörðgarð campaign setting that is reserved exclusively for future game master development. No area within Énéa will be further developed or defined in future official Jörðgarð products. As a result, there will be no danger that your own inventions within Énéa will be incompatible with future products as long as those inventions do not have important impacts upon areas outside of Énéa.